Chang Industries has 2,000 defective units of product that have already cost $14 each to produce. A salvage company will purchase the defective units as they are for $5 each. Chang's production manager reports that the defects can be corrected for $6 per unit, enabling them to be sold at their regular market price of $21. The incremental income or loss on reworking the units is:

A) $32,000 income.

B) $30,000 income.

C) $20,000 income.

D) $20,000 loss.

E) $12,000 loss.